Mandy Moore has launched a ‘This Is Us’ re-watch podcast. The 40-year-old actress – who played Rebecca Pearson in the NBC family drama series – has joined forces with Sterling K. Brown and Chris Sullivan to record ‘That Was Us’. The trio said on Instagram: “We are SO excited to finally announce that we (big) three are taking back Tuesdays and bringing #ThisIsUs back by way of a rewatch podcast called #ThatWasUs, starting May 14th! “The Pearson’s story may have ended after six seasons, but our stories continue on. For six seasons and 106 episodes, Tuesdays brought us together with tissues in on…